feat: StackSet stack does not show up in stack list

src/stack-set-synthesizer.ts

@@ -22,4 +22,10 @@ export class StackSetSynthesizer extends cdk.DefaultStackSynthesizer {
   public addDockerImageAsset(_asset: cdk.DockerImageAssetSource): cdk.DockerImageAssetLocation {
     throw new Error('StackSet Stacks do not support Docker Image Assets, yet');
   }
+
+  public synthesize(session: cdk.ISynthesisSession): void {
+    // Synthesize the template, but don't emit as a cloud assembly artifact.
+    // It will be registered as an S3 asset of its parent instead.
+    this.synthesizeTemplate(session);
+  }
 }

test/stack-set.test.ts

@@ -118,7 +118,7 @@ it('should have a defined list of files in cloud assembly', () => {
   const session = app.synth();
 
   const parentStackFiles = ['Parent.assets.json', 'Parent.template.json'];
-  const stackSetStackFiles = ['ParentTemplate0B4BAA82.assets.json', 'ParentTemplate0B4BAA82.stackset.template.json'];
+  const stackSetStackFiles = ['ParentTemplate0B4BAA82.stackset.template.json'];
   const cdkStandarddFiles = ['cdk.out', 'manifest.json', 'tree.json'];
   const assetsForS3Deployment = [
     'asset.2bc265c5e0569aeb24a6349c15bd54e76e845892376515e036627ab0cc70bb64', // "Copy" Lambda Function
@@ -178,20 +178,6 @@ it('should have the stack template as an asset', () => {
   });
 });
 
-
-it('Template for StackSet should not have any assets', () => {
-  const app = new cdk.App();
-  new MyStackSetStack(app, 'Parent');
-
-  const session = app.synth();
-
-  expect(readJson(session.directory, 'ParentTemplate0B4BAA82.assets.json')).toMatchObject({
-    dockerImages: {},
-    files: {},
-    version: '22.0.0',
-  });
-});
-
 // TODO: Copy job should move it into the right bucket
 
 it('Parent stack should have the assets of StackSet stack', () => {